add dropdown menu to download stacker analytics
Description
https://github.com/stackernews/stacker.news/issues/2612
To avoid data formatting json download was chosen. This allows the user access to the data as its used to populate the charts for them to restructure as they see fit.
Screenshots
Additional Context
Was anything unclear during your work on this PR? Anything we should definitely take a closer look at? No. I wasn't sure where to add sample data files that are generated when clicking download so I thought I'd add them here.
endpoint (six downloads for all charts exposed): registration_growth.txt spending_growth.txt spender_growth.txt item_growth.txt stacking_growth.txt stacker_growth.txt
endpoint (two downloads for two charts exposed): /stackers/bitcoin/month revenue_growth_subs.txt item_growth_subs.txt
Checklist
Are your changes backward compatible? Please answer below: Yes
On a scale of 1-10 how well and how have you QA'd this change and any features it might affect? Please answer below: 8
For frontend changes: Tested on mobile, light and dark mode? Please answer below: Yes
Did you introduce any new environment variables? If so, call them out explicitly here: No
Did you use AI for this? If so, how much did it assist you? No